JPH0999697A - Drawing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To depict documents and figures prepared by an external device on an electron black board, white board, black board, glass surface or the like. SOLUTION: The main body 1 is attached to the white board 8, and it is removable with ease. The arm 3 is rotatable relative to the main body 1, and writing means and a fulcrum pen are fixed on a drawing part 3 capable of linearly moving on the arm 3. By the rotation movement of the arm 3 and the straight movement of the drawing part 4, a polar coordinate system is formed to cover the whole of the white board. The arm 3 is balanced with its rotational center by a weight 31. Also, the main body is equipped with a connector 11 capable of being connected with an external device such as a personal computer 6.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an electronic blackboard, a white board,
The present invention relates to a drawing device for drawing characters and figures on a plane such as a blackboard and a glass surface.

[0002]

2. Description of the Related Art Conventionally, when drawing characters or figures on an electronic blackboard, a white board, a blackboard, a glass surface or the like, a person has taken a freehand means.

However, when writing characters by this means, when the amount of characters and figures is large, it is a very troublesome work, and in addition, when the characters are bent and warped, the figures are drawn freehand. Because of this, there was the inconvenience that the circles and straight lines were distorted.

On the other hand, there is a method in which an XY plotter is attached to an electronic blackboard or a white board to perform drawing, and further,
JP-A-63-193761, JP-A-1-225597,
Japanese Unexamined Patent Publication No. 5-227345 discloses a technique of drawing graphics or characters created by an external device or an electronic blackboard in order to solve the above-mentioned drawbacks.

[0005]

However, X-Y
When mounting the plotter, the moving mechanism in the X direction and the moving mechanism in the Y direction must be installed at a right angle, which makes the mounting difficult, and the main body is large in size.
There was a drawback that there were restrictions on what could be attached.

Further, the techniques disclosed in JP-A-63-193761, JP-A-1-225597, and JP-A-5-227345 are disclosed in order to eliminate the above-mentioned inconvenience. The device had to be obtained, and it was impossible to draw on a white board, a blackboard, a glass surface, and an electronic blackboard equipped with a conventional reading unit.

The object of the present invention is to improve the inconvenience of the conventional example, and to draw characters and figures neatly and quickly on a white board, a blackboard, a glass surface, and an electronic blackboard having a reading section. To provide a simple drawing device.

[0008]

In order to solve the above problems, according to the present invention, a drawing device can be easily attached to a white board, a blackboard or the like, an arm rotates with respect to the main body of the device, and the writing is performed on the arm. The drawing unit provided with the means performs drawing by a moving polar coordinate system. Further, the drawing section is provided with an erasing section for erasing characters and figures written on a white board, a blackboard or the like. The main body is also equipped with an input unit for inputting a document or graphic signal created by an external device and a signal processing unit for processing the input signal and performing scaling drawing.

According to the present invention, it is possible to draw a character or figure created by an external device on a conventional electronic blackboard, white board, blackboard, etc. by enlarging or reducing it.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An example of an embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a diagram showing a configuration of an embodiment of the present invention, in which a main body 1 is attached to a white plate 8 and can be easily removed. The arm 3 has an arrow A with respect to the main body 1.
The drawing section 4 is provided on the arm 3. A writing means 42 such as a water-based pen and an erasing tool 5 are provided in the drawing section 4 which is linearly movable on the arm 3 in the direction of arrow B.
0 is attached. A polar coordinate system is formed by the rotational movement of the arm 3 and the linear movement of the drawing unit 4, and covers the drawing of the entire white plate. The arm 3 is balanced by the weight 31 with respect to the center of rotation. Further, the main body 1 is provided with a connector 11 that can be connected to an external device such as a personal computer 9.

FIG. 2 is a view showing an example of attachment of the main body to the white plate, and the housing 23 of the main body 1 is fixed to the white plate 8 with thumbscrews 24, and can be easily attached and detached. Further, it can be attached to an electronic blackboard or a blackboard by the same method.

FIG. 3 is a view showing an example of attachment to the glass surface of the main body, in which the housing 23 of the main body 1 has a plate glass 81 and a suction cup 25.
It is fixed by. The suction cup 25 can be easily removed by pulling the suction cup knob 26, so that the suction cup 25 can be easily attached to and detached from the glass surface.

FIG. 4 is a view showing the inside of the main body 1 of the drawing apparatus of the present invention, which is a signal processing board for a character or graphic signal input from a cable 7 from an external device such as a personal computer 9 connected to a connector 11. Signal processing such as polar coordinate conversion, enlargement / reduction, character / figure generation, etc. is performed by 20, and a command is sent to the mechanical control board 21. Step motor 12, step motor 1
3 is controlled by a mechanical control board 21, the step motor 12 drives a pulley 17 via a timing belt 14, and the pulley 17 is rotatable about a shaft 19 and is fixed to the arm 3. As a result, the arm 3 is rotationally driven about the shaft 19 by the step motor 12. On the other hand, the step motor 13 drives the pulley 18 via the timing belt 15, and the timing belt 16 is wound on the pulley 18. The drawing unit 4 is fixed to the timing belt 16, and the step motor 13 linearly drives the drawing unit.

FIG. 5 is a view showing the drawing unit 4 of the drawing apparatus of the present invention. The drawing unit 4 itself is made slippery with respect to the arm 3 by the bearing 46. Also, the timing belt 1
6 is fixed by a fixing tool 45. The writing instrument 42 is held by a pen holder 43 and a catcher 44 attached to the pen holder 43, and its holding force is held by a spring 48. The erasing tool 50 is also held similarly to the writing tool 42. Instead of the erasing tool, another writing tool different from the writing tool 42 can be held.

FIG. 6 is a cross-sectional view showing the writing instrument 42 portion of the drawing section 4, in which the pen holder 43 is rotatable around a shaft 51 and is driven by a solenoid 47. Figure 6
Is a writing state, and when the writing instrument 42 is separated from the white plate 8, the plunger 52 of the solenoid 47 is lowered and the pen holder is rotated in the direction of arrow C by the spring 49, and the white plate 8 is pressed.
The writing instrument 42 separates from.

FIG. 7 is a cross-sectional view showing the erasing tool 50 portion of the drawing section 4. The erasing tool 50 is driven by a solenoid like the writing tool 42 and moves in the same manner.

In the above-described embodiment, each constituent element is shown in a specific shape and arrangement, but it is not limited to this and can be appropriately changed within a range satisfying the above-mentioned drawing function.

For example, the step motor 12 and the step motor 13 may be DC servo motors,
It is also possible to have a configuration of a DC motor and an encoder.

[0020]

As described above, according to the present invention, it is possible to easily draw a document or figure created by an external device on an electronic blackboard, a white board, a blackboard, a glass surface or the like.

[Brief description of drawings]

FIG. 1 is a front view showing a drawing device showing an example of an embodiment of the present invention attached to a white board and connected to a personal computer.

FIG. 2 is an enlarged view of a mounting portion of the main body disclosed in FIG. 1 to a white plate.

FIG. 3 is an enlarged view of a mounting portion of the main body disclosed in FIG. 1 on a glass surface.

FIG. 4 is an enlarged view of the inside of the main body (1) of the drawing apparatus disclosed in FIG.

5 is an enlarged view of the inside of a drawing unit (4) of the drawing device disclosed in FIG. 1. FIG.

6 is a cross-sectional view of the drawing unit (4) disclosed in FIG.
The writing instrument part is shown.

FIG. 7 is a cross-sectional view of an eraser portion of the drawing unit (4) disclosed in FIG.

[Explanation of symbols]

 1 Main Body 3 Arm 4 Drawing Section 7 Cable 8 White Board 9 Personal Computer 11 Connector 12 Step Motor 13 Step Motor 14 Timing Belt 15 Timing Belt 16 Timing Belt 17 Pulley 18 Pulley 19 Shaft 20 Signal Processing Board 21 Mechanical Control Board 22 Pulley 23 Main Body Case 24 Thumbscrew 25 Sucker 26 Sucker Knob 31 Weight 41 Drawing Part Housing 42 Writing Tool 43 Pen Holder 44 Catcher 45 Fixing Tool 46 Bearing 47 Solenoid 48 Spring 49 Spring 50 Erasing Tool 51 Shaft 52 Plunger 81 Plate Glass

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location G06F 3/13 320 G06F 3/13 320M H04N 1/00 H04N 1/00 H 1/387 1/387

Claims (3)

[Claims] 1. An arm which is rotatable with respect to a main body, and a drawing section provided with a writing means which is linearly movable on the arm. The arm and the drawing section are electrically driven to polar coordinates. In a drawing device that controls drawing of a system, a signal processing unit that converts a signal of a document or figure created by an external device into a polar coordinate system movement data signal for drawing and drives and controls an arm and a drawing unit is provided. Characteristic drawing device. 2. The drawing apparatus according to claim 1, wherein the document or figure can be drawn by enlarging or reducing. 3. The drawing apparatus according to claim 1, wherein the drawing unit is provided with an erasing unit so that drawn characters and figures can be wholly or partially erased.